Supply Trail is a 4.6-mile out-and-back foot trail in Haleakalā National Park, Hawaii. It climbs 948 ft to a high point of 7,753 ft. Difficulty: moderate, from the NPS hiking-rating formula.

Supply Trail OPEN
4.6 miles (7.4 km) roundtrip. 975 ft (297 m) elevation change.
Read the official NPS description
Open Supply Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Haleakalā. Haleakalā has permits or reservations for some areas: see the Haleakalā page for what's needed.